PDF Merge: Scan, Sign & Edit

Contains adsIn-app purchases
36.3K reviews
Content rating
Rated for 3+
5M+
Downloads
Content rating
Rated for 3+
Learn more
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About this app

Stop Uploading Your Private Docs to the Cloud.

Merge, Scan, and Sign PDFs 100% Offline. Your data never leaves your phone.

Tired of "free" PDF tools that make you wait for slow uploads, spam your email, or store your sensitive bank statements on their servers? PDF Merge: Scan & Sign is the "Local-First" office suite built for speed, privacy, and zero compromises.

Whether you are a student rushing a deadline or a professional signing a contract, get it done instantly without needing Wi-Fi or a subscription.
🛡️ Why Millions Choose Our "Offline-First" Suite:

🔒 Absolute Privacy: We have no servers. Your IDs, contracts, and medical records stay on your device.

⚡ Blazing Speed: No uploading. No downloading. Merge 50+ pages in under 2 seconds.

✈️ Works Anywhere: Airplane mode? Subway? Remote site? Your office is now truly in your pocket.

🚫 Zero Friction: No account sign-ups. No credit cards. Just open the app and work.

🛠️ Powerful All-In-One Toolkit:

Merge & Split: Drag-and-drop to combine assignments or extract the exact pages you need.

AI-Enhanced Scanner: Turn messy receipts into crisp, professional PDFs with auto-edge detection and perspective correction.

Digital Signature: Sign contracts instantly with your finger. Save your signature once, use it forever.

Advanced Conversion: Convert Text to PDF for clean notes or HTML to PDF to save entire webpages for offline reading.

Secure & Optimize: * Compress: Shrink file sizes for fast email sharing without losing quality.

Lock: Protect sensitive data with strong password encryption.

Watermark: Add custom text or images to protect your intellectual property.

🎓 Who Is This For?

Students: Merge scattered notes and assignments into one organized submission.

Business Owners: Sign NDAs, manage invoices, and scan IDs on the go.

Freelancers: Watermark your portfolios and secure your contracts before sending.

General Users: Organize insurance papers, tax docs, and travel IDs safely.

Stop being the product. Take control of your digital documents today with the fastest, most private PDF editor on Android.

Download PDF Merge: Scan & Sign and experience the freedom of working offline.
Merge, Scan, and Sign PDFs 100% Offline. Your data never leaves your phone.
Updated on
Feb 2, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

35.1K reviews
Felix Ng
August 27, 2020
The high and low compression seem to result in the same size (for png combination). The app doesn't remember the last folder. The pages aren't previewed before saving. The file is saved to some unknown folder which then has to be copied to the normal storage space. So it takes a lot of time to do a simple task. Anyway it's free and does the job well enough, thanks.
182 people found this review helpful
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Nyein
June 26, 2021
It was a great app for me to organize and change images to pdf file. It's more convenient before. I could send images from gallery to the app and change to pdf but now I can't. I can't select multiple images/files either in the app anymore. I have to click "add file" each time to choose a single image. I prefer previous version. I hope you fix it soon.
82 people found this review helpful
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Navdeep Kumar
August 3, 2021
Why would you change something that was so awesome ! I want to know. It was a perfect app to merge files , I gave 5 star previously because it solved all my problems but since the update this has become a garbage ! First it doesn't merge and shows error everytime and when it finally happens , you don't even get the option to open it in the app, you have to rely on different apps to open the Pdf . WORST UPDATE EVER ! If had the option I would have given it 0
127 people found this review helpful
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What’s new


New PDF Tools: Sign, Rotate, Scan Documents, Add Watermarks, PDF to Text, and Add Page Numbers.

Enhanced UI for a smoother experience.

Fixed alignment issues when signing PDFs.